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Eliminate the pill free interval
RCT daily vs cyclic vaginal 50mcg OCP
70% amenorrhea by 3 months, 90% by 1 yr but 20% still occasional spotting at month 6
significant increase in hemoglobin
No pregnancies compared to 4 in cycling arm
Coutinho EM et al. Comparative study on intermittent versus continuous use of a contraceptive pill administered by vaginal route. Contraception 1995;51:355-58.